| Blanco River | |
| Pushpin Map: | Puerto Rico |
| Pushpin Map Caption: | Location of mouth |
| Subdivision Type1: | Commonwealth |
| Subdivision Name1: | Puerto Rico |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Naguabo |
| Length: | 8.5 miles |
| Source1 Elevation: | 558 ft. |
The Blanco River (Spanish; Castilian: Río Blanco) is a river of Naguabo, Puerto Rico. This river begins at the junction of the Cubuy River, the Icacos River and the Prieto River in the Luquillo Forest Reserve at an approximate elevation of 558abbr=offNaNabbr=off above sea level. It is approximately 8.5abbr=offNaNabbr=off in length, from its origin until its discharge into the east of Puerto Rico in Río barrio in the municipality of Naguabo. It runs from north to southeast.[1] [2]